This photo shows why the U3 line in Oberursel had to be partially closed last week. The factory buildings at the “Kupferhammer” were being demolished and part of the system that carries the overhead lines was fixed to one of the walls.
The factory, which even had its own siding from the days when goods were transported on the line (tram line 24), was known as the “Lumpensortieranstalt Berger” and later as the “Jandorf-Fabrik”.